Yarn spool



Nov. 10, 1925- 06 w. BIXBY YARN SPOOL Filed Sept. 10, 1923 Patented Nov. 10, 1925'.

v UNITED STATES WALTER BIXBY, OF BOSTON, MASSACHUSETTS, ASSIGNOB TO SHAWMUT ENGINEEBr IIG COMPANY, OF BOSTON, MASSACHUSETTS, A CORPORATION OF MASSACHUSETTS.

YARN SPOOL.

Application fled September 10, 1923. Serial No. 661,805.

To all whom it may concern:

Be it known that I, WALTER BIXBY, a citizen of the United States, and resident of Boston, in the county of Suffolk and State of Massachusetts, have invented certain new and useful Improvements in Yarn Spools, of which the following is a specification.

This invention relates to yarn spool and particularly to spools for use in tube frames for tuft weaving, and is intended to provide a simple, durable and rigid construction for holding and delivering of the yarn as required.-

According to prevailing practice such spools are made of a solid wooden roll to which are glued or pinned end heads or disks to form exterior retaining flanges for the yarn, but such-spool construction unless made by expensive methods of construction are subject to rapid deterioration by loosening of parts, cracking and splintering.

The present invention embraces an all metal spool comprising a tubular metallic barrel, with stamped metal heads made of integral disks, the interior or central ortion of which is countersunk or cupped to form an annular shoulder adapted to fit 'inside the end of the metallic tube for attachment thereto and an axially projecting supporting journal for rotatably supportin the spool. To insure proper adhesion o the yarn wound around the barrel, the latter is punched with a series of punched upproections which engage and hold the yarn against slippin on the metallic surface of the barrel. ere the spools are intended for wide looms, they are made in longitudinal sections and in such case the interme diate spool journals are specially constructed to interlock two adjacent ends of the spools or sections together to secure uniform rotation of all sections.

These and other features of m invention will be described in this speci cation and will be defined in the claims hereto annexed.

In the accompanying drawings, I have illustrated a convenient and practical construction illustrating the principles of this invention, in which,

Fig. 1 1s a front elevation partly in central section illustrating a yarn s 001 embodying the features of this invention.

Fig. 2 is a cross-section on plane X-X of Figure 1.

Fig. 3 is an end elevation of an inner end of a spool section.

In the practice of this invention according to the form illustrated in the drawings I tallic strip 3, arched to conform to the circumference of the barrel, is secured on the outer surface of the barrel after said strip has been 'punched out at frequent intervals to form numerous fine raised yarn engaging and holding projections 2. The yarn retaining strip may be soldered, spot welded or otherwise attached to the barrel.

' The end heads for the barrel are also made of metal and comprise essentially, in each case, a circular disk having'its' inner or central portion cupped or depressed to form an annular shoulder 4 adapted to fit inside the 0 en end of the barrel 1, to which it is fasten firmly by any suitable means as by spot welding.

The central portion 4'! of each head forms a stiffening diaphragm in a plane parallel to but offset from the exteriorly projecting or peripheral yarn supporting portion of the head.

The usual end supporting journal 6 is mounted centrally of the interior portion of the disk, but in cases where the yarn spool is made in axially aligned sections, the inner end journal of the spool is made of a short length of tubing 5 whose larger end fits inside the offset annular flange 4 to which it is firmly secured in any suitable manner, while the outwardly projecting reduced bearing part of the journal is notched to form a series of axial projecting teeth arranged to engage a similarly notched journal of the adjacent spool so as to interlock therewith and insure uniform and equal rotation of all spool sections. The notched or toothed ends lap by each other and rest in a common journal hearing when the yarn spool is mounted in the tube frame for use. To permit circumferential adjustment of the spool sections the teeth 5 and their alternating notches should be of equal width so that two such journals will intermatch when brought together in diflerent circumferential relationship.

The outside disks 4 are also shown as provided with outwardl turned peripheral flanges 4 to give ad itional strength and stifl'ness to the structure besides affording suificient eripheral surface to avoid cutting into "the rake pads commonly usedto retard the rotationof the spool in the tube frame as the yarn is drawn off.

What I claim is- 1. A yarn spool embracing a tubular barrel, opposite end heads comprising interiorly cupped disks, formed with annular shoulders adapted to fit inside the ends of the barrel and be secured thereto, the cupped interior portions of the disks being provided with axial rojecting journals, one of which is provided with spaced teeth adapted to interlock with a similar journal in another spool substantially as described.

2. A yarn spool embracing in its construction a tubular barrel circular and disks secured 'thereto to form yarn supporting flanges exteriorily of the spool, said disks having their central portions oflset to form annular attaching shoulders adapted to fit inside the ends of the-barrel and supporting journals projecting axially of said heads, one of said our'nals comprising an annular member secured inside said annular shoulder and having its outer end notched to form interlocking endwise en agement with an axial aligned spool su stantially as de scribed. v

3. A yarn spool embracing a tubular barrel a supporting and stiffening head com prising a double flanged disk having an outwardly projecting peripheral flange and inwardl turned attaching flange dimensioned to fit inside the end of the barrel for attachment thereto and a supporting journal comprising a stub shaft whose inner end is reduced to form a shoulder and passes centrally through said disk and is detachably and rigidly clamped thereto, substantially as described.

4. A yarn-s ool embracing in its construcstruction*a tu ular barrel, a supporting and stifl'ening head comprising a double flanged disk the inner flange of which is inward- 1y offset to form an attaching shoulder fitting inside the tubular barrel, and a tubularjournal member whose inner end fits inside and is secured to said shoulder and whose outwardly projecting portion is reduced in diameter and notched at its edge to form interlocking engagement with a similar journal member, substantially as de scribed.

In witness whereof, I have subscribed to the above specificatio WALTER BIXBY. 

